1 warning: conflicting implementations of trait `TheTrait` for type `for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8`
2 --> $DIR/coherence-subtyping.rs:15:1
4 LL | impl TheTrait for for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8 {}
5 | ---------------------------------------------------------- first implementation here
7 LL | impl TheTrait for for<'a> fn(&'a u8, &'a u8) -> &'a u8 {
8 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8`
10 = note: `#[warn(coherence_leak_check)]` on by default
11 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
12 = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
13 = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
15 warning: 1 warning emitted